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Titolo:
EFFECTS OF CLICK INTENSITY AND FREQUENCY ON THE BRAIN-STEM AUDITORY-EVOKED POTENTIALS IN THE COMMON MARMOSET (CALLITHRIX-JACCHUS)
Autore:
HARADA T; TOKURIKI M;
Indirizzi:
MOCHIDA PHARMACEUT CO LTD,TOXICOL LAB,342 GENSUKE FUJIEDA SHIZUOKA 426 JAPAN YAMAGUCHI UNIV,FAC AGR,DEPT VET PHYSIOL YAMAGUCHI 753 JAPAN
Titolo Testata:
Journal of veterinary medical science
fascicolo: 7, volume: 59, anno: 1997,
pagine: 561 - 567
SICI:
0916-7250(1997)59:7<561:EOCIAF>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
STIMULUS-INTENSITY; ACOUSTIC RESPONSE; HEARING-LOSS; CAT; MONKEY; RAT; AUDIOGRAM; KETAMINE; COCHLEAR; MULATTA;
Keywords:
BRAIN-STEM AUDITORY EVOKED POTENTIAL (BAEP); CLICK STIMULATION; MARMOSET; STIMULUS FREQUENCY; STIMULUS INTENSITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
43
Recensione:
Indirizzi per estratti:
Citazione:
T. Harada e M. Tokuriki, "EFFECTS OF CLICK INTENSITY AND FREQUENCY ON THE BRAIN-STEM AUDITORY-EVOKED POTENTIALS IN THE COMMON MARMOSET (CALLITHRIX-JACCHUS)", Journal of veterinary medical science, 59(7), 1997, pp. 561-567

Abstract

Brain-stem auditory evoked potentials (BAEPs) were recorded in 20 common marmosets (Callithrix jacchus) to investigate the effects of clickfrequency up to 99 kHz, in consideration of the higher hearing range of the marmoset, and intensity on wave forms and peak latencies. According to the results of BAEP recordings at frequencies of 4, 32, and 99kHz, the number of components recorded was affected by the stimulus intensity and the clicks at an intensity of 80 dB peak equivalent soundpressure level (pe SPL) had the maximum number of clear components. Therefore, it was indicated that click stimulations at an intensity of 80 dB pe SPL over a broad range of frequencies appears to be useful for recording the maximum number of components in marmosets and may increase the information obtainable from BAEPs. BAEP latencies were prolonged as the stimulus intensity decreased from 100 to 50 dB pe SPL. The effects of stimulus frequency on the wave latencies and amplitudes in response to 80 dB pe SPL at frequencies between 0.5 and 99 kHz revealed various changes: the amplitude of wave I increased at 16 and 32 kHz,but that of waves III and V increased at 4-8 and 64-99 kHz. These increases in amplitudes of the waves may correlate with higher synchronous activity of the peripheral or central auditory pathways.

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Documento generato il 19/01/20 alle ore 14:37:53